Parameter Description
Parameter Description
121
• If P.178=0, the values of P.179, P.180 and P.181 are invalid. If the value of P.178 is not 0, PID sleep
function is selected. When the absolute value of feedback value subtract the target feedback is
lower than the sleep detect deviation and continue sleep detect duration time P.179, the output
frequency will be diminished gradually by the inverter. When the output frequency is lower than the
outage level P.181, the inverter will be stopped. When the feedback value is lower than revival level
P.180, the output frequency of inverter will select PID control function again.
For example: P.178=5%, P.179= 30s, P.180=90%, P.181=40Hz.
When the feedback value is larger than 95% of the target feedback value and is lower
than 105% of the target feedback value for 10s continuously, the output frequency will
be diminished gradually by the inverter. When the output frequency is lower than
40Hz, the inverter will be stopped. When the feedback value is lower than 90% of the
target feedback value, the inverter will revival, and the output frequency of the
inverter will select PID control function again.
<Setting>
• PID gain easy setting:
(1)After changing target, response is slow
---Increase P-gain (K
P
=P.172)
response is quick but unstable
---Decrease P-gain (K
P
=P.172)
